1244128488 has 32 divisors (see below), whose sum is σ = 3152932800. Its totient is φ = 409027968.

The previous prime is 1244128471. The next prime is 1244128513. The reversal of 1244128488 is 8848214421.

It is a super-2 number, since 2×1244128488² = 3095711389306332288, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353308 + ... + 356811.

It is an arithmetic number, because the mean of its divisors is an integer number (98529150).

Almost surely, 2^1244128488 is an apocalyptic number.

It is an amenable number.

1244128488 is an abundant number, since it is smaller than the sum of its proper divisors (1908804312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244128488 is a wasteful number, since it uses less digits than its factorization.

1244128488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710201 (or 710197 counting only the distinct ones).

The product of its digits is 131072, while the sum is 42.

The square root of 1244128488 is about 35272.2056015781. The cubic root of 1244128488 is about 1075.5280587198.

The spelling of 1244128488 in words is "one billion, two hundred forty-four million, one hundred twenty-eight thousand, four hundred eighty-eight".